Unable to retrieve data with session command over different UDP connections

That should be unnecessary. Note: that if for some reason you were to do this, you can also use the lset command: "lset lll $jsess any". This command is equivalent to: "set lll [list $jsess any]", but actually uses one less command (the list command) and so is a little more efficient.

 

 

I believe your problem may more be related to the "datagram lb" attribute of the udp profile. Enabling this attribute causes the BigIP to load balance each UDP packet. The default (disabled) is that the BigIP will route all the subsequent UDP packets within the specified timeout to the same server bypassing the load-balancing.